Exterior housing for an analytical instrument



FIG. 1 is a perspective view of an exterior housing for an analytical instrument showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof; and,

FIG. 5 is a top plan view thereof.

The rear and bottom of the exterior housing for an analytical instrument forms no part of the claimed design.

The broken Line Showing in FIGS. 1 through 5 are for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an exterior housing for an analytical instrument, as shown and described. 